High Idle Issue...

VSS370z · 02-22-2016, 05:30 PM

When i scan it for codes it hit me a p0300 which is random misfires. Even air/fuel ratio been out of whack can cause the stupid p0300 code. I have check for vaccum leaks, oil leaks and clean the maf sensors and no luck. As part of the code it did mention ignition system,fuel system or a/f ratios been mess up. Thats why now i am going to do some changes to the ignition system and fuel system and then go for the tune and see what happens.

hjo1078 · 02-22-2016, 05:52 PM

Quote:

Originally Posted by VSS370z

When i scan it for codes it hit me a p0300 which is random misfires. Even air/fuel ratio been out of whack can cause the stupid p0300 code. I have check for vaccum leaks, oil leaks and clean the maf sensors and no luck. As part of the code it did mention ignition system,fuel system or a/f ratios been mess up. Thats why now i am going to do some changes to the ignition system and fuel system and then go for the tune and see what happens.

what injectors are you running? I had the same issue for a while, and it progressively got worst and worst. Before i would clear the code, and it wouldnt come back for a while, then it started happening every time i started the car even after clearing the code. It was doing it when i had uprev and when i had ecutek. Problem went away when i switched injectors to id1300

VSS370z · 02-22-2016, 07:11 PM

Quote:

Originally Posted by hjo1078

what injectors are you running? I had the same issue for a while, and it progressively got worst and worst. Before i would clear the code, and it wouldnt come back for a while, then it started happening every time i started the car even after clearing the code. It was doing it when i had uprev and when i had ecutek. Problem went away when i switched injectors to id1300

Injectors have cross my mind as well for this idle surging thats why i am gonna try different ones. I am running Bosch 650cc injectors but going with ID 1000cc. Thanks for the info.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Car starts and stalls. Low idle issue?	OTL	Engine & Drivetrain	1	10-26-2015 09:25 AM
Little issue at idle..	pty370z	Engine & Drivetrain	43	08-31-2015 11:23 PM
RPM fluctuating at idle issue	wdkwang	Engine & Drivetrain	11	08-09-2015 11:13 PM
High idle	Powerwiz	Engine & Drivetrain	3	03-08-2015 09:23 PM
Idle Issue	theDreamer	Engine & Drivetrain	7	07-15-2013 07:21 AM

02-22-2016, 05:30 PM	#1 (permalink)
VSS370z Enthusiast Member Join Date: Apr 2012 Location: Puerto Rico Posts: 380 Drives: 09 Nissan 370z CY M6 Rep Power: 14	When i scan it for codes it hit me a p0300 which is random misfires. Even air/fuel ratio been out of whack can cause the stupid p0300 code. I have check for vaccum leaks, oil leaks and clean the maf sensors and no luck. As part of the code it did mention ignition system,fuel system or a/f ratios been mess up. Thats why now i am going to do some changes to the ignition system and fuel system and then go for the tune and see what happens.